Here you can find the source of execute(int nThreads, List
public static <T, E extends Callable<T>> void execute(int nThreads, List<E> callables) throws InterruptedException, ExecutionException
//package com.java2s; /**/*from ww w .j a v a 2 s .c om*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.List; import java.util.concurrent.Callable; import java.util.concurrent.ExecutionException; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.concurrent.Future; public class Main { /** Execute the callables by a number of threads */ public static <T, E extends Callable<T>> void execute(int nThreads, List<E> callables) throws InterruptedException, ExecutionException { final ExecutorService executor = Executors.newFixedThreadPool(nThreads); final List<Future<T>> futures = executor.invokeAll(callables); for (Future<T> f : futures) f.get(); } }